SMART SENSOR Air Conditioning Refrigerant Gas Leak Detector 1. Detectable substances: all halogen gases 2. Sensitivity: detects all halogen gases with leak rates below 0.5 ouncesyear 3. Response time: instantaneous 4. Warm-up time: 90 seconds 5. Continuous working time: 5 hours (may vary slightly depending on operating conditions) 6. Low battery indicator: 6.3V 7. Power supply: 1200mAh, 3.7V x 2 batteries 8. Probe cable length: up to 1.40 meters 9. Built-in rechargeable lithium battery, no replacement needed, powerful battery life for up to 5 hours of continuous operation 11. Dual sound and light alarm: when detecting gas, the indicator light turns on and a buzzer sounds when the concentration exceeds the alarm value, with a sound level up to 95dB 12. Self-priming pump-type probe: the probe is equipped with a suction pump, accelerating leak detection and enhancing test sensitivity 13. High-quality semiconductor probe: high sensitivity and strong stability, equipped with a long flexible stainless steel probe for a wide detection range 14. Weight: 480g 15. Dimensions: 235 x 86 x 46 mm